Amazing! You will love Croatia, I've been to Dubrovnik twice, once in 1998 and again around 2007 and it is so beautiful and back then not too touristy. I have not been to Split, but I'm sure it's equally beautiful and the locals are so friendly and nice. You'll have a blast.
Cool that hubs is going too and that @detlev will be on hand to 'babysit' him 🍺 🍻 🍺 😀
I'll get to a Hivefest some time, but not until kids are much older I'd say. Enjoy anyway.